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Finding the Fourth Proportional to 42,124.56, 63,205.21 and 22,380.00

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Solution

The fourth proportional to 42,124.56, 63,205.21 and 22,380.00 is: 33,579.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,124.56 : 63,205.21 = 22,380.00 : x
  2. Step 2: Convert to fraction form
    42,124.56/63,205.21 = 22,380.00/x
  3. Step 3: Cross multiply
    42,124.56x = 63,205.21 × 22,380.00
  4. Step 4: Simplify right side
    42,124.56x = 1,414,532,390.76
  5. Step 5: Solve for x
    x = 1,414,532,390.76/42,124.56
  6. Step 6: Final answer
    x = 33,579.76

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.